What are the different types of stars?
Stars are classified into different types based on their size, temperature, and luminosity. The main types of stars include main-sequence stars, red giants, white dwarfs, and neutron stars. Main-sequence stars are the most common type of stars, which include our Sun. They are characterized by hot gases and radiation. Red giants are larger and cooler than the Sun, while white dwarfs are smaller and hotter than the Sun.